BIOS and CMOS Error Messages and How to Fix Them
โถ BIOS ROM Checksum error
This error appears when there is a problem with the ROM that stores system information.
It occurs when there is an issue while reading the information stored in CMOS. In this case, enter CMOS SETUP and check whether each setting is configured correctly for the current system state.
After completing the settings, select 'SAVE AND EXIT SETUP' to save the changes.
If the system is old, the ROM itself that stores the BIOS information may be damaged. In that case, it is recommended to have it inspected at a motherboard repair shop or service center.
โถ Press [F1] to continue
This message usually appears when the keyboard or mouse is not connected properly.
Please check whether both devices are connected securely to their connectors.
It is also a good idea to check whether the hard disk information is set correctly in CMOS SETUP.
โถ CMOS memory size mismatch
This error occurs when the system cannot properly recognize the memory (RAM).
When new RAM is added, CMOS usually detects it automatically, but in some cases the correct memory size is reflected only after running CMOS SETUP.
Enter CMOS SETUP, check the settings, and then reboot the system.
โถ NO ROM BASIC
This message appears when an error occurs during booting.
It usually occurs when the system cannot boot from drive A. In this case, you need to insert a bootable floppy disk into drive A or change the boot setting to boot from the hard disk drive.
Similar error messages include 'Diskette Boot Failure' and 'Invalid Boot Diskette'.
โถ CMOS display type mismatch
This error occurs when there is a problem with the graphics-related settings in CMOS.
It happens when the graphics type in the 'Video...' item in CMOS SETUP is not set to EGA/VGA.
Since this is the default setting used by most graphics cards, please make sure to check it.
โถ Cache Memory Bad..
This indicates a problem with the cache memory installed on the motherboard.
Cache memory is used to improve system speed, and on some motherboards, this error may appear if the cache memory fails.
In this case, you can replace the cache memory or try setting the cache memory usage option in CMOS SETUP to 'Disable'.
The same symptom may also appear when cache-related settings such as 'Cache Write' are configured incorrectly, so please check those settings as well.
Today's News/Tips
oCam Closes Automatically a Few Seconds After Launching
When trying to record with oCam, a specific issue may occur if an online video lecture site is running. This problem is usually caused by anti-recording software used by the site to protect its content. Below is a detailed explanation of the issue and how to handle it.
Online video lecture sites often use anti-recording software to protect copyrighted content. This software detects recording programs such as oCam and force-closes them at regular intervals. As a result, oCam may not be able to continue recording normally or may close unexpectedly.
To resolve this issue, you need to contact the online video lecture site directly where you want to record. Ask the site operator whether recording is allowed and check their related policy. If necessary, request permission to record. Some sites may allow recording under certain conditions or provide a way to temporarily disable the anti-recording feature.
Attempts to bypass issues caused by anti-recording software may violate the site's terms of use, so it is important to follow the site's policy. Therefore, if you want to record lecture content with oCam, first consult the site administrator and follow the proper procedure.